For most people the liver does deplete throughout the night, which is why early morning "fasted cardio" is popular for burning fat.
But as the food in your stomach processes the liver is continually getting more calories. So if you eat a huge meal right before going to bed its possible to never switch to fat burning.
>But as the food in your stomach processes the liver is continually getting more calories. So if you eat a huge meal right before going to bed its possible to never switch to fat burning.
Probably that's because some people advice eat pasta a night before your sports event. To have some calories in your body to burn in the morning until first food stop.
I never realized the liver only holds 400 calories. I always figured it was a few thousand. (I just looked it up)
So is your body always burning fat or does the liver glycogen have to be depleted first? Does the liver deplete every night when you're sleeping?
I really don't have a great mental model of this stuff.
Is it true that you need to reach high insulin levels before the body starts storing fat?